Ig Vena (Human Normal Immunoglobulin (Iv))

Ig Vena, a pooled human immunoglobulin, is used to replace deficient antibodies in various immune‑mediated conditions.

• Primary immunodeficiency disorders: restores IgG levels to reduce infection frequency.
• Secondary immunodeficiency: provides passive immunity in patients with acquired antibody loss.
• Immune thrombocytopenic purpura: modulates immune response to increase platelet counts.

• Human Normal Immunoglobulin consists of pooled IgG antibodies derived from screened donors. After intravenous infusion, the IgG distributes in the vascular and extravascular compartments, binds to pathogens and toxins, and interacts with Fc receptors on immune cells, thereby neutralizing antigens and modulating complement activation and cytokine production, which collectively provides passive immunity and immunomodulation.

Ig Vena may be associated with a range of adverse reactions following intravenous administration.

Common Side Effects

• Headache: mild to moderate headache occurring during or after infusion.
• Fever or chills: transient rise in temperature or shivering.
• Nausea: mild gastrointestinal upset.
• Fatigue: temporary feeling of tiredness.

Serious or Rare Side Effects

• Anaphylaxis: severe allergic reaction requiring immediate medical intervention.
• Acute renal failure: sudden loss of kidney function, especially in patients with pre‑existing renal disease.
• Thromboembolic events: formation of blood clots that may lead to vascular occlusion.
• Hemolysis: destruction of red blood cells causing anemia.

Before using Ig Vena, several safety considerations should be observed.

• Pre‑infusion assessment: evaluate patient’s medical history, especially renal, cardiac, and hepatic status.
• Monitoring during infusion: observe vital signs and watch for signs of hypersensitivity.
• Rate of administration: infuse slowly at first and adjust based on tolerance.
• Concomitant immunosuppressants: assess risk of infection when used with other immune‑modulating agents.
• Pregnancy and lactation: use only if potential benefit justifies potential risk; data are limited.
• Store at 2-8°C: keep refrigerated, protect from light, do not freeze or shake.

Ig Vena can interact with other medicines, affecting safety or efficacy.

Major Interactions (Avoid)

• Live vaccines: may reduce vaccine efficacy or increase risk of infection; avoid concurrent administration.
• High‑dose aspirin or NSAIDs: increase risk of bleeding when combined with Ig therapy.

Moderate Interactions (Monitor Closely)

• ACE inhibitors: may potentiate risk of renal impairment.
• Diuretics: monitor fluid balance and renal function.
• Immunosuppressive agents (e.g., rituximab): may alter immune response; adjust monitoring.